JPH07246515A - Forming method for scraped surface - Google Patents

Abstract

PURPOSE:To efficiently form a scraped surface most suitable for a rubbing surface of a work by detecting irregularities over a rubbing surface to be formed into a scraped surface, representing the irregularities of an entire rubbing surface graphically, and thereby cutting off projected sections at appropriate places based on images taken as mentioned above. CONSTITUTION:A rubbing surface 1 is photographed by a CCD camera 34 with a slider 13 moved in all directions, and stopped at an appropriate position, a photograph taken is then processed by signals from a control section so as to be graphically represented, so that a processed image where irregularities are clearly recognized, is indicated on a monitor screen. Subsequently let a hydraulic cylinder 31 and a cushioning air cylinder 32 be actuated based on signals from the control section for the position, shape and depth of each projected section in the processed image, and each projected section 36 at appropriate places is cut off with a bite 30 moved. By this constitution, a proper scraped surface fitted to the rubbing surface 1 of a work can thereby be formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming an appropriate scraping surface capable of forming a suitable scraping surface.

[0002]

2. Description of the Related Art Forming a scraping surface is to form a sliding surface between workpieces, that is, to finish a sliding surface formed by a machine tool or the like.

The sliding surface of a work formed by a machine tool or the like has a waviness in relation to the accuracy of the machine tool.

Therefore, a scraping surface is formed on this sliding surface to remove undulations, thereby forming a flat surface, and at the same time, a recess serving as an oil reservoir is left on the sliding surface to form a good sliding surface. It is the formation of the scraping surface.

In general, the scraping surface is formed by adhering lead oxide to the sliding surface of the work, rubbing the sliding surface on a surface plate, and determining the unevenness of the sliding surface by the degree of lead oxide shaving. Apply a scraping tool (scrape bite) to the convex in an inclined state, and the operator pushes to scrape the convex by hand,
Lead oxide is attached again, and similarly scraped with a scraping tool, and this work is repeated to form a scraped surface (in some cases, lead oxide may be stuck to the surface plate).

However, the formation of the scraping surface is an operation in which the operator visually confirms the unevenness of the sliding surface by the density of lead oxide, and it is the operation of manually scraping the convex portion. It is extremely hard work and requires skill.

Therefore, in order to solve such a problem, an automatic scraping method disclosed in Japanese Patent Publication No. 3-17611 has been proposed (hereinafter, simply referred to as a conventional example).

In this prior art example, an optical sensor detects irregularities existing on a mating surface, and the irregularities (length of irregularities) detected are controlled by the concept of "time" to properly cut the convex portions with a cutting tool. It is a thing.

[0009]

However, as a result of various studies on this conventional example, the applicant has confirmed that the following drawbacks are present.

In the conventional example, the optical sensor is moved at the same time as the cutting tool travels, the unevenness of the mating surface is detected by the optical sensor, and the detection signal (time signal) causes the cutting tool to follow. Anyway, the whole mating surface will be finished uniformly.

This is because of a simple structure in which the optical sensor detects irregularities and cuts the convex portions based on the detection signal.

By the way, there is a case where it is not necessary to form the scraping surface on the entire sliding surface depending on the use of the work. Then, it is impossible to judge whether or not the formation of the scraping surface is necessary without checking the unevenness of the entire lapping surface.

In the case of the conventional example, there is a drawback in that it cannot be applied to a work which does not need to have a scraping surface formed on the entire sliding surface due to the above structure.

This is because the conventional example does not have a structure for observing the unevenness of the mating surface as a whole, and has only a structure for detecting the unevenness at the extreme part and cutting the convex part by this detection signal. Because.

Although related to the above points, the conventional example has a configuration in which the unevenness of the mating surface is detected by the optical sensor as described above, and therefore the shape of the convex portion viewed from the plane cannot be determined. . Therefore, it is impossible to move the cutting tool according to the shape of the convex portion viewed from the plane, the cutting tool moves linearly forward, and after the cutting tool moves to the end, the cutting tool moves back and moves forward again. There is a drawback in that the tool moves linearly, and eventually the projection is cut by repeating the forward linear movement of the cutting tool, forcing the cutting tool to uselessly move. In other words, the bite must be moved even where there is no convex portion due to the structure.

Further, in the conventional example, it is impossible to detect the depth of the unevenness on the sliding surface, so that a good scraped surface cannot be formed.

The present invention has a technical object to provide a method for forming a scraping surface which solves the above drawbacks.

[0018]

The gist of the present invention will be described with reference to the accompanying drawings.

A method for forming a scraping surface, in which unevenness of the sliding surface 1 for forming the scraping surface is detected, the unevenness of the entire sliding surface is displayed in an image, and based on this image, an appropriate position is determined. The present invention relates to a scraping surface forming method characterized in that the convex portion 36 is cut by an appropriate means 2.

[0020]

The entire unevenness of the lapping surface 1 is shown in an image, and the convex portion 36 at an appropriate place is cut by the appropriate means 2 based on this image. Therefore, an appropriate scraping surface matching the lapping surface 1 of the work. Can be formed.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The drawings show an apparatus for carrying out the present invention.
This will be described below.

A support 11 is provided on one side of the base 10 so as to be movable back and forth with respect to the base 10. A support arm rod 12 is projectingly provided on the support 11 and the support arm 12 is attached to the support 11. On the other hand, it is provided so as to be able to move up and down, and a slide body 13 is provided on the supporting arm rod 12 so as to be movable left and right.

Reference numeral 14 is a sliding rail, 15 is a screw rod, 16 is a drive motor controlled by a signal from a control unit (not shown), 17
Is a guide rod.

A case body 26 having a long window 25 formed on a curved upper surface is projected from the sliding body 13. A support body 18 is provided below the case body 26 and a top surface of the support body 18 is provided. The nut cylinder 35 is fixed, and the nut cylinder 35 is positioned inside the case body 26. On the top of the case body 26 is a screw rod 37 with a handle.
This screw rod 37 is inserted into the case body 26 through the long window 25, and the screw rod 37 is screwed to the nut cylinder 35.

An attachment body 38 is fixed to the support body 18, and a guide rod 19 protruding in the horizontal direction is provided on the attachment body 38, and a slide body 20 is slidably provided on the guide rod 19. The
A guide rod 22 is installed between mounting pieces 21 and 21 projecting above and below the sliding body 20, and an elevating body 23 is slidably provided on the guide rod 22. The mounting body 24 having a shape and a tapered surface 24 ′ formed in the front is fixed,
This mounting body 24 has a protrusion 27 'that matches the tapered surface 24'.
The bite mounting body 27 that is installed obliquely is fixed by the long window 28 and the fixing screw 29 so that the position can be adjusted freely.
30 is fitted and fastened.

Reference numeral 31 is a sliding member according to a signal from the control unit.
A hydraulic cylinder that slides the bite 20 to move the bite 30 back and forth, 32 is a buffer air cylinder that absorbs vibrations and loads generated in the bite 30 by a signal from the control unit, and 33 is a work.

Further, reference numeral 34 is a CCD camera for photographing the sliding surface 1 of the work 33. The sliding surface 1 photographed by this CCD camera is a signal from a control unit of the present apparatus (not shown). The image is processed (made into a graphic) by and is displayed as a processed image on a monitor (not shown).

In this processed image, the position of the convex portion 36 can be determined by the determined coordinates, the shape (area) of the convex portion 36 can be clearly visually recognized, and based on the shading depending on the degree of adhesion of lead oxide. This is an image in which the protrusion degree (height) of the convex portion 36 can be visually recognized.

Since this embodiment has the above structure, the following operational effects are exhibited.

The following is a case where the scraping surface is formed in two steps, a roughing step and a finishing step.

First, lead oxide is adhered to the reference surface of the surface plate (not shown), the sliding surface 1 of the work 33 is rubbed against the reference surface of the surface plate, and the work 33 is clamped on the base 10. Fix with.

Next, slide the slide body 13 in the front-back direction, the left-right direction,
Move it to an appropriate position in the vertical direction, CCD camera
At 34, the lapping surface 1 is photographed, processed by a signal from the control unit and made into a graphic, and a processed image (see FIG. 6) in which irregularities are clearly visible is displayed on a monitor.

Then, based on the position, shape, and depth of the convex portion 36 of the processed image, the hydraulic cylinder 31 and the buffer air cylinder 32 are operated by a signal from the control unit, and the cutting tool is operated.
Move 30 to start the cutting operation (see FIG. 7).

In this embodiment, the operator determines the processed image, and the operator outputs a drive signal from the control section to the drive motor 16 so that the operator determines the cutting site and the cutting amount at the site. With regard to the configuration, various data may be input to the control unit in advance, and the operation of the bite 30 may be automatically controlled based on the data and the processed image without the operator's involvement.

The cutting tool 30 descends, the sliding motion of the sliding body 20 causes the cutting tool 30 to slide, and the supporting body 11 moves forward to cause the cutting tool 30 to move forward while performing cutting work, and to move up and back. Subsequently, the cutting tool 30 moves laterally, and the same repetition is repeated to complete the cutting of one convex portion 36.

Since the operation of the bite 30 is controlled on the basis of the processed image, it exhibits the following features.

In the above-mentioned conventional example, the position of the convex portion 36 is grasped by a point to perform the cutting work. However, this apparatus has previously confirmed the shape of the convex portion 36 shown in the processed image, and this is confirmed. The cutting tool 30 operates based on the shape. Therefore, byte 30
Moves appropriately in the vicinity of the convex portion 36 and properly cuts one convex portion 36. Therefore, the bite 30 operates without waste. That is, in the conventional example, when the cutting tool has moved from the start end to the end and the cutting tool has finished moving over the entire surface of the sliding surface 1, as a result, the entire surface of the sliding surface 1 has been cut. Tool 30 is one convex
When 36 is completely cut, the next convex portion 36 is cut, and the convex portion 36 is cut. Therefore,
The cutting work will be performed more efficiently. This bite 30 has a buffer air cylinder 32, that is,
The cutting tool 30 has a buffering effect due to the compressive fluid.
Even if the convex portion 36 hits the 30 greatly, the vibration and load due to this hit are well absorbed, and the load on the work 33 is always a constant load. This cushioning air cylinder 32 enables the same work as the formation of the scraping surface which has been performed by the conventional scraping tool. That is, the elastic force of the handle of the conventional scraping tool is exerted by the buffer air cylinder 32. It is impossible for the spring to keep the load on the work 33 constant, and the spring has a problem in durability.

Further, the bite 30 is arranged vertically, and the bite 30 has a structure in which the nut cylinder 35 is pulled by rotating a handle with a screw rod 37, so that the angle of the bite 30 can be freely adjusted. Since the sliding surface 1 is, for example, a vertical surface, or when the sliding surface 1 is formed of a flat surface and a vertical surface, the corners between the flat surface and the vertical surface are also excellent. It is possible to cut without leakage, and since the cutting tool 30 is in the vertical state, the space required for cutting is only the thickness and width of the cutting tool 30, which is also practical in this respect.

Further, as described above, since the angle of the cutting tool 30 can be freely adjusted by turning the handle, it is possible to cut from various directions and a so-called beautiful scraping surface can be formed.

Furthermore, since the cutting force point of the cutting tool 30 of this embodiment is located on the rear side in the cutting tool advancing direction, the cutting work is not so-called push-cutting but pull-cutting, so that excessive cutting can be prevented as much as possible. Therefore, the cutting work can be performed well.

The roughing process for forming the scraped surface is completed by performing the above-described cutting work on each convex portion 36.

Subsequently, lead oxide is attached to the sliding surface 1 of the work 33, and the finishing cutting process is performed in the same manner as above to complete the formation of the scraped surface.

As described above, according to the apparatus according to the present embodiment, the projection 36 of the mating surface 1 can be cut based on the processed image showing the unevenness of the mating surface 1 in a bird's eye view. It is possible to easily cut only the required convex portion 36 by an appropriate amount, there is no need to force the cutting tool 30 to uselessly move, and the shape and height of the convex portion 36 is not a raw image. Since the convex portion 36 is cut on the basis of the processed image that allows the user to clearly recognize the above, the cutting is properly performed. Further, since the bite 30 is arranged in a vertical state and the angle can be freely changed, the workability is improved, and the presence of the cushioning air cylinder 32 improves the workability. Therefore, it is possible to prevent overcutting.

Therefore, according to this embodiment, a very good scraping surface can be efficiently formed.

Then, in the case of a work for a certain purpose, control data of such as cutting only a certain portion is stored in advance in the control unit of the apparatus according to the present embodiment, and the processed image is output to the monitor. Convex part that needs to be cut at the time
It is possible to further improve the practicality by configuring so as to output only 36 and similarly storing an appropriate cutting amount.

[0046]

Since the present invention is configured as described above, it is a method for forming a scraping surface that can efficiently form a scraping surface most suitable for the sliding surface of the work.

[Brief description of drawings]

FIG. 1 is a front view of the present embodiment.

FIG. 2 is a plan view of the present embodiment.

FIG. 3 is a perspective view of a main part of this embodiment.

FIG. 4 is a front view of a main part of this embodiment.

FIG. 5 is a side view of a main part of this embodiment.

FIG. 6 is an explanatory front view of a processed video image displayed on the monitor according to the present exemplary embodiment.

FIG. 7 is an explanatory diagram of unevenness on a mating surface.

[Explanation of symbols]

 1 Sliding surface 2 Means 36 Convex part

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Masa Wakabayashi 2-5-19 Funaoka, Ojiya City, Niigata Prefecture Kyowa Industry Co., Ltd. (72) Akira Abe 2-5-19 Funaoka, Ojiya City, Niigata Prefecture Kyowa Industry Co., Ltd. Incorporated (72) Inventor Takemi Yoshino 2-7 Komu, Kameda-cho, Nakagahara-gun, Niigata Prefecture (72) Naoki Hasegawa 4036 Natsuto, Teradomari-cho, Mishima-gun, Niigata Prefecture

Claims (1)

[Claims] 1. A method for forming a scraping surface, wherein unevenness of a mating surface for forming a scraping surface is detected, the unevenness of the entire mating surface is displayed in an image, and an appropriate position is determined based on this image. A method for forming a scraped surface, which comprises cutting the convex portions of the above by an appropriate means.